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Finding the Fourth Proportional to 614,661.76, 920,253.96 and 325,815.24

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Solution

The fourth proportional to 614,661.76, 920,253.96 and 325,815.24 is: 487,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,661.76 : 920,253.96 = 325,815.24 : x
  2. Step 2: Convert to fraction form
    614,661.76/920,253.96 = 325,815.24/x
  3. Step 3: Cross multiply
    614,661.76x = 920,253.96 × 325,815.24
  4. Step 4: Simplify right side
    614,661.76x = 299,832,764,838.35
  5. Step 5: Solve for x
    x = 299,832,764,838.35/614,661.76
  6. Step 6: Final answer
    x = 487,801.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.